منابع مشابه
Influence Diagnostics for the Normal Linear Model with Censored Data
Methods of detecting influential observations for the normal model for censored data are proposed. These methods include one-step deletion methods, deletion of observations and the empirical influence function. Emphasis is placed on assessing the impact that a single ohservatioii has on the estimation of coefficients of the model. Functions of tlie coeflkieiits such as tlie median lifetime are ...
متن کاملInfluence Diagnostics for the Weibull Model Fit to Censored Data
Methods for detecting influential observations for the Weibull model fit to censored data are discussed. These methods include: one-step deletion diagnostics, influence functions and curvature diagnostics. Results indicate that the curvature diagnostics may be helpful in detecting masking.
متن کاملImproved Cramer-Rao Inequality for Randomly Censored Data
As an application of the improved Cauchy-Schwartz inequality due to Walker (Statist. Probab. Lett. (2017) 122:86-90), we obtain an improved version of the Cramer-Rao inequality for randomly censored data derived by Abdushukurov and Kim (J. Soviet. Math. (1987) pp. 2171-2185). We derive a lower bound of Bhattacharya type for the mean square error of a parametric function based on randomly censor...
متن کاملEstimating Disease Onset Distribution Functions from Censored Mixture Data
We consider nonparametric estimation of disease onset distribution functions in multiple populations using censored data with unknown population identifiers. The problem is motivated from studies aiming at estimating the disease risk distribution in deleterious mutation carriers for the purpose of genetic counseling and design of therapeutic intervention trials to modify disease onset progressi...
متن کاملInfluence diagnostics in exponentiated-Weibull regression models with censored data
Diagnostic methods have been an important tool in regression analysis to detect anomalies, such as departures from the error assumptions and the presence of outliers and influential observations with the fitted models. The literature provides plenty of approaches for detecting outlying or influential observations in data sets. In this paper, we follow the local influence approach (Cook 1986) in...
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ژورنال
عنوان ژورنال: The Annals of Statistics
سال: 1981
ISSN: 0090-5364
DOI: 10.1214/aos/1176345334